Stock-shell for winding fabrics



W. F. GAMIVIETER.

STOCK SHELL FOR WINDING FABRICS. APPLICATION FILED MAY 23. 1919.

- Patented Mar. 2,1920.

WILLIAM F. GAMMETER, 0F GADIZ, OHIO- STOCK-SHELL FOR WINDING FABRICS.

Specification of Letters Patent.

Patented Mar. 2, 1920.

Application filed May 23, 1919. Serial No. 299,127.

To all whom it may concern:

Be it known that I, WILLIAM F. GAMME- TER, a citizen of the United States, residing at Cadiz, in the county of Harrisonand State of Ohio, have invented certain new and useful Improvements in Stock-Shells for Winding Fabrios,,0f which the following is a specification.

This invention relates to stock or calender shells such as are employed for winding fabrics and is designed more particularly as an improvement on the shells shown in my prior Patents No. 1,003,593 issued September 19, 1911 and No. 1,104,296 issued July 21, 191.4.

At'the time my original calender shells were designed and patented the load of fabric and rubber wound thereon did not usually exceed from one hundred and fifty to two hundred and fifty pounds and these structures were well adapted to accommodate and sustain such a load. However, present day demands necessitate the winding upon the rolls of as much as two thousand pounds or more of fabric and rubber. It is desirable and customary to mount these rolls upon mandrels relatively small in diameter and in fact the greater portion of such rolls are supported upon mandrels not more than one and a quarter inches in cross sectional dimensions. Of course, where such a mandrel is of any considerable length, there is likely to be a deflection or yielding of the mandrel in proportion to the load and the length of the mandrel. This disadvantage was to some extent overcome in the structure shown in my Patent No. 1,104,296 by the provision of a tube fitting the heads of the shell and fitting the mandrel, but I have found that even this arrangement is not entirely effective in preventing sagging or deflection of the mandrel where such extraordinarily heavy loads are imposed upon the shell. The present invention therefore has as one of its objects to provide a shell so constructed that the load imposed upon the body of the shell will be evenly distributed and sustained throughout the length of the mandrel so that without being required to replace the mandrels now in use by mandrels of greater cross sectional dimensions, I am enabled to adapt the rolls to receive the extraordinary weight imposed upon them under present demands of manuother injury to the mandrel.

The calender shells are provided Within their ends with heads constructed to fit the mandrel for supporting the shell and in my previously patented structures the peripheries or rims of these heads had only a short bearing in the respective ends of the shell so that they were liable to become broken out, which was, of course, a great disadvantage. The present invention therefore has as a further object to provide these heads with a bearing of maximum length Within the respective ends of the shell so as to the more efl'ectually brace the shell at its ends and more securely anchor the heads in the ends of the shell. I

Another object of the invention is to provide such a shell with a mandrel tube representing an improvement over the tube employed for example in my Patent No. 1,104,296.

In the accompanying drawings:

Figure 1 is a perspective View of one end of a calender shell constructed in accordance With the present invention, a portion of the body of the shell being broken w} Fig. 2 is a perspective view looking at the inner end of one of the headsfor the shell and illustrating in dotted lines the corresponding end of the mandrel tube;

Fig. 3 is a perspective view of one of the reinforcing and bracing units employed within the shell at spaced intervals along the mandrel tube;

Fig. 4 is a vertical longitudinal sectional view through one end of the shell, the respective head and the respective end of the mandrel tube, a portion of the mandrel being shown in elevation;

Fig. 5 is a perspective view of one end of the mandrel tube' In the drawings, the numeral 1 indicates in general the body of the shell which is of the usual cylindrical form and is provided with the usual longitudinally extending slot or groove 2 to receive the edge of the fabric to be wound upon the shell, the usual strip 3 being arranged within the shell inwardly of this groove as in my previously patented structures. In itself, the body of the shell is of the previously patented construction and the improvements, as indicated above facture, without deflection or sagging of or load.

35 minimum length.

reside in the heads for the shell, the mandrel tube, and the means provided at intervals along the tube for bracing the walls of the shell and equally distributing the One of the heads above referred to is clearly shown in Figs. 1, 2 and 4 of the drawings and indicated by the numeral 4 and the said head comprises a substantially 1o cylindrical rim or'body portion 5 provided at its outer end with a circumscribing shoulder 6 to abut against the end of the ody of the shell when the rim or body 5 of the head is fitted into the said end of the shell as shown in Fig. 4 of the drawings. The body of the head is as above stated cylindrical except that it is provided with a depressed portion 7 to accommodate the strip 3; The head 4 is formed with an integral web portion 8 having ventilating openings 9 and provided centrally with an opening 10 of a diameter and contour to snugly receive the mandrel for the shell which mandrel is indicated by the numeral 11 and is as illustrated in the drawings rectangular in cross section as in the previously patented structures. By reference to Fig. 4 of the drawings it Wlll be observed that the web 8 of the head '4 is located in a plane substantially midway tic/between the inner and outer ends of the rim 40 tive end'of the shell, it affords a bearing of maximum length.

The web 8 of each head is provided with an integral socket located centrally upon its inner face and indicated in general by the numeral 12, the socket having its walls arranged in the form of a rectangle .so as to receive the corresponding end of the mandrel tube and the inner faces of the walls occupying planes spaced from the respective walls of the opening 10 a distance substantiall equal to the thickness of the walls of t e said mandrel tube so as to provide shoulders 13 the purpose of which will be presently explained. Also for a purpose to be presently explained the soc et 12 is v formed at diametrically opposite points and y in corners between adjacent walls with slots 14. As stated above the socket 12' projects inwardly from the web 8 of the respective head and is consequently surrounded by that portion of the body or rim 5 of the head which extends between the periphery of the web and the inner end of the said head. Also as above pointed out, the web 8 is not located at the extreme inner end of the head but at a point substantially midway between the ends of the head and therefore when load is imposed upon the shell there will be less and in fact practically no likelihood of overturning or breaking out of the head.

The mandrel tube heretofore referred to is clearly shown in Fig. 5 of the drawings and is indicated in general by the numeral 15, the said tube being preferably formed from a single piece of sheet metal bent to rectangular form and having its edge portions bent at an angle to provide flanges 16 which-meet at one corner of the tube and which are riveted or otherwise secured together, as indicated by the numeral 17. This tube is of cross sectional dimensions to snugly seat at its ends in the sockets 12 provided for its reception upon the heads 4, the

' flanges 16 engaging in one or another of the slots 14 in the walls of the said sockets as shown in Fig. 2 of the drawings. As clearly illustrated in Fig. 4 of the drawings, the mandrel 11 is snugly fitted within the tube 15, the ends of the tube abutting against the shoulders 13 and the ends of the man-.

drel extending beyond the ends of the tube I,

and through the openings 10 in the respec-- tive head 4 so as to provide terminal journals (not shown) whereby the shell may be rotatably mounted.

In order to brace the walls of the shell 1 against collapse and in order to evenly distribute along the mandrel the weight disposed upon the shell, a number of reinforcing heads of the form shown clearly in Figs. 1 and 3 of the drawings are provided. Each of these heads, indicated in I general by the numeral 18, comprises a substantially circular body 19 provided with a peripheral laterally projecting flange 20 which is cylindrical except for a depression 21 to correspond to the depressions 7 in the heads 4 for the purpose of seating the strip 3. The reinforcing heads 18 at their flanged peripheries are of a diameter to fit snugly within the shell 1 being driven or otherwise forced frictionally into the shell.

A number of these heads 18 are provided and the heads are arranged at suitable in-:

tervals throughout the length of the mandrel tube 15, each head being formed con-- trally with a rectangular opening 22 to snugly receive the said mandrel tube an the walls of the opening being formed at their corners with notches or recesses. 23

either of which may receive the flanges 16 ofathe said mandrel tube.- Likewise the circular body of each head 18 is formed with one or more ventilating openings 24 which,

as in the case of the openings 9 in the heads 4, provide for the circulation of air through the shell so that the heat will be efl'ectually carried off.

It will be evident from the foregoing dewhich it is transmitted to the mandrel 11.

Consequently, there will be no likelihood of sagging or deflection of the mandrel even though an extraordinary weight be imposed thereon. It will also be evident that the mandrel tube 15 in the particular form illustrated in the drawings, may be manufactured readily-at a low cost inasmuch as it is formed up from a single piece of sheet metal bent to the required shape and closed in the manner shown and described.

Having thus described the invention, what is claimed as new is:

1. In a calender shell, opposite mandrel heads each including a web having a supporting flange extending on either side thereof, and a shell body receiving the entire flange width of each of said heads to prevent breaking out of the heads due to overloading.

2. In a calender shell, opposite mandrel heads each including a web having a shell I supporting flange extending on either side thereof and a peripheral stop bead on one edge of each flange, and a mandrel shell receiving the width of each flange to the stopbead whereby breaking out of the heads due to overloading is prevented.

3. In a calender shell, opposite mandrel heads each including a web haying a su porting flange extending on either si e thereof, a shell body receiving the entire flange width of each of said heads, .a hub on each head extending inwardly of the shell and forming mandrel tube receiving sockets, and a mandrel tube fitting said sockets.

4. In a calender shell, opposite mandrel heads, each including a web having a supporting flange extending on either side thereof, a shell body receiving the entire flange width of each head, a hub on each head forming mandrel tube receiving sock-' ets, a mandrel tube fitting said sockets, and spaced intermediate supporting members carried on said mandrel and engaging the inner surface of the body.

In testimony whereof I aflix my signature.

W. I. GAMMETER. [1,. 5.] Witnesses:

- PAUL L. Annie,

P. W. Boees. 

